{"classifier_version":"1.4.0","documentation":"https://rirtracker.com/api/","disclaimer":"This site independently analyzes publicly available Internet number-resource records. It is not affiliated with or endorsed by ARIN, the RIPE NCC, APNIC, LACNIC, AFRINIC, the Number Resource Organization (NRO), or any other Regional Internet Registry. Classifications and hold-expiration dates are evidence-based interpretations and do not constitute confirmation that a resource is available for issuance or transfer.","resource":"AS524","resource_type":"asn","page":"https://rirtracker.com/asn/524/","statistics_now":{"registry":"ARIN","status":"assigned (dated 2002-06-05)"},"current_holder":{"rir":"ARIN","org":"Cirion Technologies Solutions, LLC","handle":"GCASL","how":"RDAP, looked up 2026-11-10 18:24 UTC"},"rdap_snapshots":[{"resource_type":"asn","start_key":"0000000000000000000000000000020c","end_key":"0000000000000000000000000000020c","captured_at":"2026-11-10T18:24:48+00:00","reason":"watch","authoritative_rir":"ARIN","handle":"AS524","name":"CIRION-524","status":"active","org_handle":"GCASL","org_name":"Cirion Technologies Solutions, LLC","registration_date":"2002-06-05T00:00:00-04:00","last_changed_date":"2024-03-26T16:36:25-04:00","rdap_url":"https://rdap.arin.net/registry/autnum/524"},{"resource_type":"asn","start_key":"0000000000000000000000000000020c","end_key":"0000000000000000000000000000020c","captured_at":"2026-11-03T18:24:21+00:00","reason":"watch","authoritative_rir":"ARIN","handle":"AS524","name":"CIRION-524","status":"active","org_handle":"GCASL","org_name":"Cirion Technologies Solutions, LLC","registration_date":"2002-06-05T00:00:00-04:00","last_changed_date":"2024-03-26T16:36:25-04:00","rdap_url":"https://rdap.arin.net/registry/autnum/524"},{"resource_type":"asn","start_key":"0000000000000000000000000000020c","end_key":"0000000000000000000000000000020c","captured_at":"2026-10-29T19:48:08+00:00","reason":"watch","authoritative_rir":"ARIN","handle":"AS524","name":"CIRION-524","status":"active","org_handle":"GCASL","org_name":"Cirion Technologies Solutions, LLC","registration_date":"2002-06-05T00:00:00-04:00","last_changed_date":"2024-03-26T16:36:25-04:00","rdap_url":"https://rdap.arin.net/registry/autnum/524"},{"resource_type":"asn","start_key":"0000000000000000000000000000020c","end_key":"0000000000000000000000000000020c","captured_at":"2026-10-24T18:23:20+00:00","reason":"watch","authoritative_rir":"ARIN","handle":"AS524","name":"CIRION-524","status":"active","org_handle":"GCASL","org_name":"Cirion Technologies Solutions, LLC","registration_date":"2002-06-05T00:00:00-04:00","last_changed_date":"2024-03-26T16:36:25-04:00","rdap_url":"https://rdap.arin.net/registry/autnum/524"},{"resource_type":"asn","start_key":"0000000000000000000000000000020c","end_key":"0000000000000000000000000000020c","captured_at":"2026-10-18T18:20:49+00:00","reason":"watch","authoritative_rir":"ARIN","handle":"AS524","name":"CIRION-524","status":"active","org_handle":"GCASL","org_name":"Cirion Technologies Solutions, LLC","registration_date":"2002-06-05T00:00:00-04:00","last_changed_date":"2024-03-26T16:36:25-04:00","rdap_url":"https://rdap.arin.net/registry/autnum/524"},{"resource_type":"asn","start_key":"0000000000000000000000000000020c","end_key":"0000000000000000000000000000020c","captured_at":"2026-10-13T18:20:35+00:00","reason":"watch","authoritative_rir":"ARIN","handle":"AS524","name":"CIRION-524","status":"active","org_handle":"GCASL","org_name":"Cirion Technologies Solutions, LLC","registration_date":"2002-06-05T00:00:00-04:00","last_changed_date":"2024-03-26T16:36:25-04:00","rdap_url":"https://rdap.arin.net/registry/autnum/524"},{"resource_type":"asn","start_key":"0000000000000000000000000000020c","end_key":"0000000000000000000000000000020c","captured_at":"2026-10-10T17:49:03+00:00","reason":"watch","authoritative_rir":"ARIN","handle":"AS524","name":"CIRION-524","status":"active","org_handle":"GCASL","org_name":"Cirion Technologies Solutions, LLC","registration_date":"2002-06-05T00:00:00-04:00","last_changed_date":"2024-03-26T16:36:25-04:00","rdap_url":"https://rdap.arin.net/registry/autnum/524"}],"transfers":[{"id":2782,"date":"2022-03-08T15:36:30Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Level 3 Parent, LLC","recipient_org":"Global Crossing Americas Solutions, LLC","range":"AS524","log":"ARIN"},{"id":880,"date":"2018-02-20T17:35:50Z","type":"MERGER_ACQUISITION","source_rir":"ARIN","recipient_rir":"ARIN","source_org":"Level 3 Communications, Inc.","recipient_org":"Level 3 Parent, LLC","range":"AS524","log":"ARIN"}],"events":[{"event_id":"5d9e26cef64cd460","registry":"ARIN","report_date":"2022-03-08","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS524","start":524,"end":524,"classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Level 3 Parent, LLC","recipient_organization":"Global Crossing Americas Solutions, LLC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:00+00:00","page":"https://rirtracker.com/asn/524/#e-5d9e26cef64cd460","report_page":"https://rirtracker.com/arin/reports/2022-03-08/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/524.json","observed":"Merger/acquisition: Level 3 Parent, LLC (ARIN) to Global Crossing Americas Solutions, LLC (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Level 3 Parent, LLC (ARIN) to Global Crossing Americas Solutions, LLC (ARIN) on 2022-03-08 15:36 UTC. The registration changed hands; it is not a new allocation from ARIN. ARIN-Issued and ARIN's statistics don't show this change; only the transfer log records it.","evidence":[{"type":"transfer","url":"https://ftp.arin.net/pub/stats/arin/transfers/transfers_latest.json","retrieved_at":"2026-10-13T13:57:20+00:00","summary":"Transfer log: MERGER_ACQUISITION on 2022-03-08 15:36 UTC, Level 3 Parent, LLC (ARIN) to Global Crossing Americas Solutions, LLC (ARIN); resources moved: AS524"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20220307.gz","retrieved_at":"2026-10-12T22:57:55+00:00","summary":"ARIN delegated statistics 2022-03-07 (produced 2022-03-07T14:00:10+00:00), before the report: assigned (dated 2002-06-05)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2022/delegated-arin-extended-20220309.gz","retrieved_at":"2026-10-12T22:58:00+00:00","summary":"ARIN delegated statistics 2022-03-09 (produced 2022-03-09T14:00:11+00:00), after the report: assigned (dated 2002-06-05)"}]},{"event_id":"7a92c44ebaba5ea8","registry":"ARIN","report_date":"2018-02-20","source":"transfers","raw_action":"TRANSFER","raw_line":null,"resource_type":"asn","resource":"AS524","start":524,"end":524,"classification":"MERGER_ACQUISITION","classification_label":"Merger/acquisition or reorganization","confidence":"CONFIRMED","source_rir":"ARIN","recipient_rir":"ARIN","source_organization":"Level 3 Communications, Inc.","recipient_organization":"Level 3 Parent, LLC","inventory_effect":"No effect on ARIN applicant inventory","inventory_effect_code":"NO_EFFECT","provisional":false,"classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:33+00:00","page":"https://rirtracker.com/asn/524/#e-7a92c44ebaba5ea8","report_page":"https://rirtracker.com/arin/reports/2018-02-20/","evidence_url":"https://rirtracker.com/api/v1/resources/asn/524.json","observed":"Merger/acquisition: Level 3 Communications, Inc. (ARIN) to Level 3 Parent, LLC (ARIN)","explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Level 3 Communications, Inc. (ARIN) to Level 3 Parent, LLC (ARIN) on 2018-02-20 17:35 UTC. The registration changed hands; it is not a new allocation from ARIN. ARIN-Issued and ARIN's statistics don't show this change; only the transfer log records it.","evidence":[{"type":"transfer","url":"https://ftp.arin.net/pub/stats/arin/transfers/transfers_latest.json","retrieved_at":"2026-10-13T13:57:20+00:00","summary":"Transfer log: MERGER_ACQUISITION on 2018-02-20 17:35 UTC, Level 3 Communications, Inc. (ARIN) to Level 3 Parent, LLC (ARIN); resources moved: AS524"},{"type":"delegated_before","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180219.gz","retrieved_at":"2026-10-12T21:42:07+00:00","summary":"ARIN delegated statistics 2018-02-19 (produced 2018-02-19T06:10:25+00:00), before the report: assigned (dated 2002-06-05)"},{"type":"delegated_after","url":"https://ftp.arin.net/pub/stats/arin/archive/2018/delegated-arin-extended-20180221.gz","retrieved_at":"2026-10-12T21:42:11+00:00","summary":"ARIN delegated statistics 2018-02-21 (produced 2018-02-21T06:09:03+00:00), after the report: assigned (dated 2002-06-05)"}]}],"classification_history":{"5d9e26cef64cd460":[{"raw_change_id":564870,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:19:00+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Level 3 Parent, LLC (ARIN) to Global Crossing Americas Solutions, LLC (ARIN) on 2022-03-08 15:36 UTC. The registration changed hands; it is not a new allocation from ARIN. ARIN-Issued and ARIN's statistics don't show this change; only the transfer log records it."}],"7a92c44ebaba5ea8":[{"raw_change_id":553883,"classification_code":"MERGER_ACQUISITION","confidence":"CONFIRMED","classifier_version":"1.4.0","classified_at":"2026-10-14T00:18:33+00:00","current":1,"public_explanation":"ARIN's transfer log records a merger, acquisition or reorganization from Level 3 Communications, Inc. (ARIN) to Level 3 Parent, LLC (ARIN) on 2018-02-20 17:35 UTC. The registration changed hands; it is not a new allocation from ARIN. ARIN-Issued and ARIN's statistics don't show this change; only the transfer log records it."}]},"arin_statistics_now":{"status":"assigned (dated 2002-06-05)"}}